Joint for metal beds.



GEORGE oii'ioiieo, ILLmois .roiNT Fon' Medienhaus? l Specification ofLetters Patent.

- To all whom it may concern.:

Be it known that I, GEORGE ADAMS, a citizen ofthe United States, and aresident of Chicago, in the' county of Cook and State yof Illinois, havemventedA certain new andy useful .Improvementsin Joints for Metal jBeds, `ofwhich the following is Aa specification. l

This invention relates to metal beds, and relates particularly to jointsfor connecting different members of metal bedsteads, or the lilre ,ofthe general type shown and described, in the application of John M.Adams, ,-led:

January.` 8 1909, Serial, No. 471,226.13

The object of the present invention;.is to,4

, provide improved; and simplified means for securing the mold.yplate'in position; preparatory.,to castingzthe abutment; for-.con-lnecting the. mold'.plate and abutment-so that they will form ajsubstantially unitary structure; and also for-preventing alLplay" orrelative v movement of the connected-` membersof the bedstead'.'

` Tokeiiect thefforegoing objects,aljoint of, "my invention. comprisesthe various features and details of*constructionherein-;

.after described l and claimed;

. of a bedsteadgand of a mold platesecuredn vInthe accom anyingdrawings, in which myinvention is fully illustratedldigre 1i is aperspective view showing thev application of myk improved 'oint for.connecting-. the L end' of a rod or tu eto a hollow,y member of abedstead, the '.mold plate onvthe. inside-of the hollow member and thesecuring means thereforA being shown in dottedf'lines. Fig. 2 is aperspective'view of afhollowrm'embertherein, preparatory to forming-.1ajoint,

the hollow.A memherepbeing partly broken.,

away to expose said mold tplatef' Fig. 3y is a vertical sectional viewon the line 3-3 of Fig. 4'. Fig. 4 is atransverse, sectional viewv onthe line 4-4 of Fig. 3; .and Fig. `5.is a,

vertical sectional view showing the, ap

plication of my improved joint for connect-A mgza corner fastening to ahollow bed post.

eferring now particularly to Figs. 1 to 4 n ofthe drawings, 1Ldesignates a hollow memberofa bedstead, or the like, as'atop or bottom'tube'forming part of the framework ,f of theQheadgorioot of 'abedstead, usually connected thereto,vusual 1y calleda Thehollowmemberylis provided in its side theiendfo the member? called"cross tubes, and 2 an upright tube withfar` hole f or ,opening 3.adaptedlto receive As shown, the

telling.

memberQ fits the holeor opening 3 close] but `myinvention contemplatesvequally holes oilarger size, depending upon the desired `finish at thejoint between said mem'- bers'l andQ bei' lv is'what, i'oiipu'rposes ofconvenient ref# Y PateatedJune 1, 190e'. j 1 1ApplicationledJanuari/.27,1909. SerialNggYQl...

Secured in the hollow mem-f erence, may be termeda mold plate 4, whicl'rl contacts with the inner surface oi said hol low member around andv ata distancevirom the .hole or opening 3 in said hollow member andwhich'is shapedy to form a'olosedrecess or cavity 5 into whichtheholeorl opening 3 opens. ,The mold plate may bev `made. of anysuitablemetal, beingpreferablystam ed 'orpressed .fronisheet steel `of suitablethickness, a desirable thickness for ordinary. pur- 4posesfbeingabout-l/l oi an inch.;"The mold ,platerl .is adapted to'be'securedinposition preparatory i atc. casting the abutment 7,-' lwhich is designedto connect the membersy threadedengagement.with aholel or Y.o en-'zy ingin said mold plate, the'endof W ich bears against.v theinside `oi'thehollow memberv .1 opposite *to the holervo'r opening 3.' l/Vitlr thedescribed construction' it is obvious that .turninv thescrew 8I with.its end incontact with-tile vside of the hollow member l, the mold plate4 being held against rotation, willoperatetov draw said mold plate intoclose engagement with the-inner surface=of the hollow memben'l aroundthe' opening 3 and will also operate to holdsaidmold plate firmly inposition toi'orm the recess 5. To

prevent turning ofthe mo ld vplate. 4 with the screw 8, said -mold plateis preferably made longer thanthediameter of the hollow mem- Myinvention :Contemplates:v making the screw 8 either lonfrer or shorterthan the diameteriof jthe hollow member 1, a'sinay bedes'ired, butsaidscrew will, any eventp: -fr preferably` bel made 'of such 'lengththat when l 3100 turned up lto secure the mold plate 4 in posif.

tion toiorm'the/frecess or cavity 5, the endv lVhere thefsc-rew 8isfrmade shorter than, or

' of-said screw willproject intoA saidrecess.

substantially. equal in length tothe interior diameter ot the hollowmember 1, saidsorew may be engaged Lwith the mold plate before said moldplate is inserted into said` hollow. memberl 1. When, ',however, thescrew 8 is made longer than the. interior diameter of the hollow memberAll, Asaidmold. plate will be first inserted intosaidhhollow f member `1andbrought nitopositiel withthe screw-threaded opening therein designedfor engagement by the screw S opposite the, opening 3 and said screw isthen engaged wit-h said screw-threaded opening through said openin r 3.

When the member 2 is hollow, the screw S will preferably be providedwith a head 9 adapted to enter the bore thereof and -to l'orm a plugclosing the bore thereof. Said head 9 will thus define the distancewhich the metal 'forming the abutment 7 will enter the end of saidmember 2 when said abut-- ment is cast. Vfhile I have, in the drawings,shown the head 9 as formed integral with the screw S., the object of theinvention, as it relates to this feature, can be effected equally y'wellby a separate head or nut threaded. to said screw 8 and my inventioncontemplates this construction as the equivalent of the integral headand by the expression headed screw" used in the claims, I intend toinclude either an integral head or a separate head or nut inscrew-threaded engagement with said screw. The mold plate 4 having beeninserted into the member 1 and secured therein, `to l'oiin the recess 5in the I'manner heretofore described, molten metal, preferably castiron, is poured into said recess to form the abutment 7. Nhere themember .Z is closely fitted to the opening 3, 'one or more gates or pourholes 10 are provided in the member 1 opening intothe recess 5. Afterthe abutment 7 has set and hardened, the spuds projecting through thegates or pour holes 1() are dressed ofi' flush with the surface of themember 1.

Tith the described construction it is obvious that the screw S, beingembedded inV the abutment 7 and bearing against the inside of thehollow7 member 1 opposite to said abutment, said screw will operate toprevent, movement oll said abutment and thus of the member .2 relativelyto the member 1 and will also operate to secure the mold plate 4 and theabutment 7 together so that said mold plate will form in effecta part ofsaid abutment.

.In Fig. y5 of the drawings, I have shown my improved joint as appliedfor securing a orner fastening tothe hollow post ola metal bedstcad,Referring now to said Fig. 5, 11 designates the hollow post of thebeadstead, 21 the corner fastening member, 31 the hole or opening in thepost 11, 41 the mold plate, 81 the screw for securing said niold platein position, said screw being preferably but. not

necessaril irovided with a head 9 7l the,

abutment cast within the recess ."31 defined bysaid mold plate 11, saidabutment being Vpreferably cast integral with the corner] fasteningmember 2.

I claim 1. A ,oint for a metal bedstead, or the like., comprising ahollow member provided with a hole or opening, a mold plate, means forsecuring said mold plate within said hollow member, said mold platebeing sha )ed to forma recess or cavity within said hollow member intowhich the opening in said hollow member opens, the means for so securingsaid mold plate in position comprising a screw in screw-threadedengagement with a hole or opening in said mold plate, the end of whichis adapted to bear against the inner surface of said hollow member andto draw said mold plate into close engagement with the side thereofaround the hole or opening therein, a part ol' or projection on theother vconnected member which extends through the hole or opening insaid hollow member into the recessor cavity defined by said mold plate,and an abutment cast within said recess or cavity, with or upon saidpart of or projection on said second connected member which projectsinto the cavity or recess defined by said moldV plate, substantialljr asdescribed.

2. A joint for a metal bedstead, or the like, comprising a hollow memberprovided with a hole or-opening, a mold plate, means for securing saidmold plate within said hollowmembersaid mold plate being shaped to forma recess or cavity vwithin said hollow member into which the opening insaid hollow member opens, the means for so securing said mold platev inposition comprising a screw in screw-threaded engagement with a hole oropening in said mold plate, an end 0ll which is adapted to bear againstthe inner surface of said hollow member and to draw said mold plate intoclose engagement with the side thereof around the hole or openingtherein, said screw being of such length that it will project into therecess or cavity de- Y fined by said mold plate, a part of or projection on the other connected member which extends through the hole oropening in said hollow member into the recess or cavity defined by saidniold plate, and an abutment castwitliin said recess or cavity, with orupon said part of or projection on said second connected member whichprojects into the cavity or recess definedby said mold plate and alsoupon the end of' the screw for securing the mold plate in position whichprojects into said recess or cavity, substantially as described.

3. A joint for a metal bedstead, or the like, comprising a hollow memberprovided with a ho c or openin a mold plate, means for securing said modplate Within said hollow member, said mold plate being shaped to foi-nia recess or cavity within said hollow meix'iber into which the openingin said hollow member opens, the means for so securing said mold platein position comprising a headed screw in screw-threaded engagementtobear against. tht` inner surface of said holaround the hole oropeningv therein, said screw ,being of such length that its headed p endwill project into `the recess or cavit-i de 'c lined by said mold plate,a part of or projection ontheother connected member which extendsthrough the hole or opening in said hollow member into the recess orcavity deiined b v said mold plate, and an abut-nient cast within saidrecess or cavity, with or upon itv or recessdened by saidy mold plateand also upon the hea-ded end of the screw for sel curing themold platein position which projects' into said cavity orrecess, substantiall)v asdescribed. i A

4. 'A joint fory a metal bedstead, or the like,

1 comprising ra hollow member provided wit-h a hole or opening, a moldzpla-te. means for securingr sald mold late within said hollow `saidpart of or projection on said second con- I nectedinemberwhich`'projects into the cav day of January. A, D.

end of the body portion of which is adapted to bear against the innersurface of said hollow member and to draw said mold plate into closeengagementwith the side thereof around the hole or openingl therein,said screw being' of: such length that its headed end will 'project intothe recess or cavity de- 'lined by said mold plate, a hollow pa-rtof orprojection on the other connected member which extends through the holeor opening in said first hollow member into the recess or cavity definedby said mold plate, and over the head of said screw which 1s of propersize to forma plug therefor, and an abutment cast wit-hin said recess orcavity u onsaid hollow part of or projection on sai second connectedmember which projects into said cavit)v or recess and which enters thehollow end thereof asfar as the. plug formed by the head of the screwfor securing said mold plate in position, substantially as described.

In testimony. that I claim the foregoing as my invention` I affix mysignature in presence of two subscribing witnesses; this 22nd GEORGEADAMS.

`Witnesses z K. A. CosjrELLo.

G. .\l, ELuNGEN.

